It is paralleled to east by the west coast of Aomori Bay and to the west by the Tsugaru Mountains, running from north-northwest to south-southeast on the peninsula, through the city of Aomori, and finally extending south toward the Hakkōda Mountains.

[1][2] No major earthquakes can be directly attributed to the Aomori Bay West Coast Fault Zone during recorded history.

There is a history of destructive earthquakes originating in the area, but they could have come from other faults on the peninsula.

[3][4] It has been estimated that the fault zone could produce an earthquake with a magnitude of 7.3 Mj.

There is a 5-10 percent chance of an earthquake occurring on the zone in the next 300 years.